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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     * <a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     * <a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    <a name="line.17"></a>
<FONT color="green">018</FONT>    package org.apache.commons.dbcp;<a name="line.18"></a>
<FONT color="green">019</FONT>    <a name="line.19"></a>
<FONT color="green">020</FONT>    import java.sql.CallableStatement;<a name="line.20"></a>
<FONT color="green">021</FONT>    import java.sql.Connection;<a name="line.21"></a>
<FONT color="green">022</FONT>    import java.sql.PreparedStatement;<a name="line.22"></a>
<FONT color="green">023</FONT>    import java.sql.SQLException;<a name="line.23"></a>
<FONT color="green">024</FONT>    <a name="line.24"></a>
<FONT color="green">025</FONT>    import java.util.NoSuchElementException;<a name="line.25"></a>
<FONT color="green">026</FONT>    <a name="line.26"></a>
<FONT color="green">027</FONT>    import org.apache.commons.pool.KeyedObjectPool;<a name="line.27"></a>
<FONT color="green">028</FONT>    import org.apache.commons.pool.KeyedPoolableObjectFactory;<a name="line.28"></a>
<FONT color="green">029</FONT>    <a name="line.29"></a>
<FONT color="green">030</FONT>    /**<a name="line.30"></a>
<FONT color="green">031</FONT>     * A {@link DelegatingConnection} that pools {@link PreparedStatement}s.<a name="line.31"></a>
<FONT color="green">032</FONT>     * &lt;p&gt;<a name="line.32"></a>
<FONT color="green">033</FONT>     * The {@link #prepareStatement} and {@link #prepareCall} methods, rather than creating a new PreparedStatement<a name="line.33"></a>
<FONT color="green">034</FONT>     * each time, may actually pull the statement from a pool of unused statements.<a name="line.34"></a>
<FONT color="green">035</FONT>     * The {@link PreparedStatement#close} method of the returned statement doesn't<a name="line.35"></a>
<FONT color="green">036</FONT>     * actually close the statement, but rather returns it to the pool. <a name="line.36"></a>
<FONT color="green">037</FONT>     * (See {@link PoolablePreparedStatement}, {@link PoolableCallableStatement}.)<a name="line.37"></a>
<FONT color="green">038</FONT>     * <a name="line.38"></a>
<FONT color="green">039</FONT>     *<a name="line.39"></a>
<FONT color="green">040</FONT>     * @see PoolablePreparedStatement<a name="line.40"></a>
<FONT color="green">041</FONT>     * @author Rodney Waldhoff<a name="line.41"></a>
<FONT color="green">042</FONT>     * @author Dirk Verbeeck<a name="line.42"></a>
<FONT color="green">043</FONT>     * @version $Revision: 885261 $ $Date: 2009-11-29 15:07:02 -0500 (Sun, 29 Nov 2009) $<a name="line.43"></a>
<FONT color="green">044</FONT>     */<a name="line.44"></a>
<FONT color="green">045</FONT>    public class PoolingConnection extends DelegatingConnection implements Connection, KeyedPoolableObjectFactory {<a name="line.45"></a>
<FONT color="green">046</FONT>        /** Pool of {@link PreparedStatement}s. and {@link CallableStatement}s */<a name="line.46"></a>
<FONT color="green">047</FONT>        protected KeyedObjectPool _pstmtPool = null;<a name="line.47"></a>
<FONT color="green">048</FONT>    <a name="line.48"></a>
<FONT color="green">049</FONT>        /** Prepared Statement type */<a name="line.49"></a>
<FONT color="green">050</FONT>        private static final byte STATEMENT_PREPAREDSTMT = 0;<a name="line.50"></a>
<FONT color="green">051</FONT>        <a name="line.51"></a>
<FONT color="green">052</FONT>        /** Callable Statement type */<a name="line.52"></a>
<FONT color="green">053</FONT>        private static final byte STATEMENT_CALLABLESTMT = 1;<a name="line.53"></a>
<FONT color="green">054</FONT>         <a name="line.54"></a>
<FONT color="green">055</FONT>        <a name="line.55"></a>
<FONT color="green">056</FONT>        /**<a name="line.56"></a>
<FONT color="green">057</FONT>         * Constructor.<a name="line.57"></a>
<FONT color="green">058</FONT>         * @param c the underlying {@link Connection}.<a name="line.58"></a>
<FONT color="green">059</FONT>         */<a name="line.59"></a>
<FONT color="green">060</FONT>        public PoolingConnection(Connection c) {<a name="line.60"></a>
<FONT color="green">061</FONT>            super(c);<a name="line.61"></a>
<FONT color="green">062</FONT>        }<a name="line.62"></a>
<FONT color="green">063</FONT>    <a name="line.63"></a>
<FONT color="green">064</FONT>        /**<a name="line.64"></a>
<FONT color="green">065</FONT>         * Constructor.<a name="line.65"></a>
<FONT color="green">066</FONT>         * @param c the underlying {@link Connection}.<a name="line.66"></a>
<FONT color="green">067</FONT>         * @param pool {@link KeyedObjectPool} of {@link PreparedStatement}s and {@link CallableStatement}s.<a name="line.67"></a>
<FONT color="green">068</FONT>         */<a name="line.68"></a>
<FONT color="green">069</FONT>        public PoolingConnection(Connection c, KeyedObjectPool pool) {<a name="line.69"></a>
<FONT color="green">070</FONT>            super(c);<a name="line.70"></a>
<FONT color="green">071</FONT>            _pstmtPool = pool;<a name="line.71"></a>
<FONT color="green">072</FONT>        }<a name="line.72"></a>
<FONT color="green">073</FONT>    <a name="line.73"></a>
<FONT color="green">074</FONT>    <a name="line.74"></a>
<FONT color="green">075</FONT>        /**<a name="line.75"></a>
<FONT color="green">076</FONT>         * Close and free all {@link PreparedStatement}s or {@link CallableStatement} from the pool, and<a name="line.76"></a>
<FONT color="green">077</FONT>         * close the underlying connection.<a name="line.77"></a>
<FONT color="green">078</FONT>         */<a name="line.78"></a>
<FONT color="green">079</FONT>        public synchronized void close() throws SQLException {<a name="line.79"></a>
<FONT color="green">080</FONT>            if(null != _pstmtPool) {<a name="line.80"></a>
<FONT color="green">081</FONT>                KeyedObjectPool oldpool = _pstmtPool;            <a name="line.81"></a>
<FONT color="green">082</FONT>                _pstmtPool = null;<a name="line.82"></a>
<FONT color="green">083</FONT>                try {<a name="line.83"></a>
<FONT color="green">084</FONT>                    oldpool.close();<a name="line.84"></a>
<FONT color="green">085</FONT>                } catch(RuntimeException e) {<a name="line.85"></a>
<FONT color="green">086</FONT>                    throw e;<a name="line.86"></a>
<FONT color="green">087</FONT>                } catch(SQLException e) {<a name="line.87"></a>
<FONT color="green">088</FONT>                    throw e;<a name="line.88"></a>
<FONT color="green">089</FONT>                } catch(Exception e) {<a name="line.89"></a>
<FONT color="green">090</FONT>                    throw (SQLException) new SQLException("Cannot close connection").initCause(e);<a name="line.90"></a>
<FONT color="green">091</FONT>                }<a name="line.91"></a>
<FONT color="green">092</FONT>            }<a name="line.92"></a>
<FONT color="green">093</FONT>            getInnermostDelegate().close();<a name="line.93"></a>
<FONT color="green">094</FONT>        }<a name="line.94"></a>
<FONT color="green">095</FONT>    <a name="line.95"></a>
<FONT color="green">096</FONT>        /**<a name="line.96"></a>
<FONT color="green">097</FONT>         * Create or obtain a {@link PreparedStatement} from the pool.<a name="line.97"></a>
<FONT color="green">098</FONT>         * @param sql the sql string used to define the PreparedStatement<a name="line.98"></a>
<FONT color="green">099</FONT>         * @return a {@link PoolablePreparedStatement}<a name="line.99"></a>
<FONT color="green">100</FONT>         */<a name="line.100"></a>
<FONT color="green">101</FONT>        public PreparedStatement prepareStatement(String sql) throws SQLException {<a name="line.101"></a>
<FONT color="green">102</FONT>            if (null == _pstmtPool) {<a name="line.102"></a>
<FONT color="green">103</FONT>                throw new SQLException(<a name="line.103"></a>
<FONT color="green">104</FONT>                        "Statement pool is null - closed or invalid PoolingConnection.");<a name="line.104"></a>
<FONT color="green">105</FONT>            }<a name="line.105"></a>
<FONT color="green">106</FONT>            try {<a name="line.106"></a>
<FONT color="green">107</FONT>                return(PreparedStatement)(_pstmtPool.borrowObject(createKey(sql)));<a name="line.107"></a>
<FONT color="green">108</FONT>            } catch(NoSuchElementException e) {<a name="line.108"></a>
<FONT color="green">109</FONT>                throw (SQLException) new SQLException("MaxOpenPreparedStatements limit reached").initCause(e); <a name="line.109"></a>
<FONT color="green">110</FONT>            } catch(RuntimeException e) {<a name="line.110"></a>
<FONT color="green">111</FONT>                throw e;<a name="line.111"></a>
<FONT color="green">112</FONT>            } catch(Exception e) {<a name="line.112"></a>
<FONT color="green">113</FONT>                throw new SQLNestedException("Borrow prepareStatement from pool failed", e);<a name="line.113"></a>
<FONT color="green">114</FONT>            }<a name="line.114"></a>
<FONT color="green">115</FONT>        }<a name="line.115"></a>
<FONT color="green">116</FONT>    <a name="line.116"></a>
<FONT color="green">117</FONT>        /**<a name="line.117"></a>
<FONT color="green">118</FONT>         * Create or obtain a {@link PreparedStatement} from the pool.<a name="line.118"></a>
<FONT color="green">119</FONT>         * @param sql the sql string used to define the PreparedStatement<a name="line.119"></a>
<FONT color="green">120</FONT>         * @param resultSetType result set type<a name="line.120"></a>
<FONT color="green">121</FONT>         * @param resultSetConcurrency result set concurrency<a name="line.121"></a>
<FONT color="green">122</FONT>         * @return a {@link PoolablePreparedStatement}<a name="line.122"></a>
<FONT color="green">123</FONT>         */<a name="line.123"></a>
<FONT color="green">124</FONT>        public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {<a name="line.124"></a>
<FONT color="green">125</FONT>            if (null == _pstmtPool) {<a name="line.125"></a>
<FONT color="green">126</FONT>                throw new SQLException(<a name="line.126"></a>
<FONT color="green">127</FONT>                        "Statement pool is null - closed or invalid PoolingConnection.");<a name="line.127"></a>
<FONT color="green">128</FONT>            }<a name="line.128"></a>
<FONT color="green">129</FONT>            try {<a name="line.129"></a>
<FONT color="green">130</FONT>                return(PreparedStatement)(_pstmtPool.borrowObject(createKey(sql,resultSetType,resultSetConcurrency)));<a name="line.130"></a>
<FONT color="green">131</FONT>            } catch(NoSuchElementException e) {<a name="line.131"></a>
<FONT color="green">132</FONT>                throw (SQLException) new SQLException("MaxOpenPreparedStatements limit reached").initCause(e); <a name="line.132"></a>
<FONT color="green">133</FONT>            } catch(RuntimeException e) {<a name="line.133"></a>
<FONT color="green">134</FONT>                throw e;<a name="line.134"></a>
<FONT color="green">135</FONT>            } catch(Exception e) {<a name="line.135"></a>
<FONT color="green">136</FONT>                throw (SQLException) new SQLException("Borrow prepareStatement from pool failed").initCause(e);<a name="line.136"></a>
<FONT color="green">137</FONT>            }<a name="line.137"></a>
<FONT color="green">138</FONT>        }<a name="line.138"></a>
<FONT color="green">139</FONT>        <a name="line.139"></a>
<FONT color="green">140</FONT>        /**<a name="line.140"></a>
<FONT color="green">141</FONT>         * Create or obtain a {@link CallableStatement} from the pool.<a name="line.141"></a>
<FONT color="green">142</FONT>         * @param sql the sql string used to define the CallableStatement<a name="line.142"></a>
<FONT color="green">143</FONT>         * @return a {@link PoolableCallableStatement}<a name="line.143"></a>
<FONT color="green">144</FONT>         * @throws SQLException<a name="line.144"></a>
<FONT color="green">145</FONT>         * @since 1.3<a name="line.145"></a>
<FONT color="green">146</FONT>         */<a name="line.146"></a>
<FONT color="green">147</FONT>        public CallableStatement prepareCall(String sql) throws SQLException {<a name="line.147"></a>
<FONT color="green">148</FONT>            try {<a name="line.148"></a>
<FONT color="green">149</FONT>                return (CallableStatement) (_pstmtPool.borrowObject(createKey(sql, STATEMENT_CALLABLESTMT)));<a name="line.149"></a>
<FONT color="green">150</FONT>            } catch (NoSuchElementException e) {<a name="line.150"></a>
<FONT color="green">151</FONT>                throw new SQLNestedException("MaxOpenCallableStatements limit reached", e);<a name="line.151"></a>
<FONT color="green">152</FONT>            } catch (RuntimeException e) {<a name="line.152"></a>
<FONT color="green">153</FONT>                throw e;<a name="line.153"></a>
<FONT color="green">154</FONT>            } catch (Exception e) {<a name="line.154"></a>
<FONT color="green">155</FONT>                throw new SQLNestedException("Borrow callableStatement from pool failed", e);<a name="line.155"></a>
<FONT color="green">156</FONT>            }<a name="line.156"></a>
<FONT color="green">157</FONT>        }<a name="line.157"></a>
<FONT color="green">158</FONT>        <a name="line.158"></a>
<FONT color="green">159</FONT>        /**<a name="line.159"></a>
<FONT color="green">160</FONT>         * Create or obtain a {@link CallableStatement} from the pool.<a name="line.160"></a>
<FONT color="green">161</FONT>         * @param sql the sql string used to define the CallableStatement<a name="line.161"></a>
<FONT color="green">162</FONT>         * @param resultSetType result set type<a name="line.162"></a>
<FONT color="green">163</FONT>         * @param resultSetConcurrency result set concurrency<a name="line.163"></a>
<FONT color="green">164</FONT>         * @return a {@link PoolableCallableStatement}<a name="line.164"></a>
<FONT color="green">165</FONT>         * @throws SQLException<a name="line.165"></a>
<FONT color="green">166</FONT>         * @since 1.3<a name="line.166"></a>
<FONT color="green">167</FONT>         */<a name="line.167"></a>
<FONT color="green">168</FONT>        public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {<a name="line.168"></a>
<FONT color="green">169</FONT>            try {<a name="line.169"></a>
<FONT color="green">170</FONT>                return (CallableStatement) (_pstmtPool.borrowObject(createKey(sql, resultSetType,<a name="line.170"></a>
<FONT color="green">171</FONT>                                resultSetConcurrency, STATEMENT_CALLABLESTMT)));<a name="line.171"></a>
<FONT color="green">172</FONT>            } catch (NoSuchElementException e) {<a name="line.172"></a>
<FONT color="green">173</FONT>                throw new SQLNestedException("MaxOpenCallableStatements limit reached", e);<a name="line.173"></a>
<FONT color="green">174</FONT>            } catch (RuntimeException e) {<a name="line.174"></a>
<FONT color="green">175</FONT>                throw e;<a name="line.175"></a>
<FONT color="green">176</FONT>            } catch (Exception e) {<a name="line.176"></a>
<FONT color="green">177</FONT>                throw new SQLNestedException("Borrow callableStatement from pool failed", e);<a name="line.177"></a>
<FONT color="green">178</FONT>            }<a name="line.178"></a>
<FONT color="green">179</FONT>        }<a name="line.179"></a>
<FONT color="green">180</FONT>        <a name="line.180"></a>
<FONT color="green">181</FONT>    <a name="line.181"></a>
<FONT color="green">182</FONT>    //    TODO: possible enhancement, cache these preparedStatements as well<a name="line.182"></a>
<FONT color="green">183</FONT>    <a name="line.183"></a>
<FONT color="green">184</FONT>    //    public PreparedStatement prepareStatement(String sql, int resultSetType,<a name="line.184"></a>
<FONT color="green">185</FONT>    //                                              int resultSetConcurrency,<a name="line.185"></a>
<FONT color="green">186</FONT>    //                                              int resultSetHoldability)<a name="line.186"></a>
<FONT color="green">187</FONT>    //        throws SQLException {<a name="line.187"></a>
<FONT color="green">188</FONT>    //        return super.prepareStatement(<a name="line.188"></a>
<FONT color="green">189</FONT>    //            sql, resultSetType, resultSetConcurrency, resultSetHoldability);<a name="line.189"></a>
<FONT color="green">190</FONT>    //    }<a name="line.190"></a>
<FONT color="green">191</FONT>    //<a name="line.191"></a>
<FONT color="green">192</FONT>    //    public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys)<a name="line.192"></a>
<FONT color="green">193</FONT>    //        throws SQLException {<a name="line.193"></a>
<FONT color="green">194</FONT>    //        return super.prepareStatement(sql, autoGeneratedKeys);<a name="line.194"></a>
<FONT color="green">195</FONT>    //    }<a name="line.195"></a>
<FONT color="green">196</FONT>    //<a name="line.196"></a>
<FONT color="green">197</FONT>    //    public PreparedStatement prepareStatement(String sql, int columnIndexes[])<a name="line.197"></a>
<FONT color="green">198</FONT>    //        throws SQLException {<a name="line.198"></a>
<FONT color="green">199</FONT>    //        return super.prepareStatement(sql, columnIndexes);<a name="line.199"></a>
<FONT color="green">200</FONT>    //    }<a name="line.200"></a>
<FONT color="green">201</FONT>    //<a name="line.201"></a>
<FONT color="green">202</FONT>    //    public PreparedStatement prepareStatement(String sql, String columnNames[])<a name="line.202"></a>
<FONT color="green">203</FONT>    //        throws SQLException {<a name="line.203"></a>
<FONT color="green">204</FONT>    //        return super.prepareStatement(sql, columnNames);<a name="line.204"></a>
<FONT color="green">205</FONT>    //    }<a name="line.205"></a>
<FONT color="green">206</FONT>    <a name="line.206"></a>
<FONT color="green">207</FONT>        /**<a name="line.207"></a>
<FONT color="green">208</FONT>         * Create a PStmtKey for the given arguments.<a name="line.208"></a>
<FONT color="green">209</FONT>         * @param sql the sql string used to define the statement<a name="line.209"></a>
<FONT color="green">210</FONT>         * @param resultSetType result set type<a name="line.210"></a>
<FONT color="green">211</FONT>         * @param resultSetConcurrency result set concurrency<a name="line.211"></a>
<FONT color="green">212</FONT>         */<a name="line.212"></a>
<FONT color="green">213</FONT>        protected Object createKey(String sql, int resultSetType, int resultSetConcurrency) {<a name="line.213"></a>
<FONT color="green">214</FONT>            String catalog = null;<a name="line.214"></a>
<FONT color="green">215</FONT>            try {<a name="line.215"></a>
<FONT color="green">216</FONT>                catalog = getCatalog();<a name="line.216"></a>
<FONT color="green">217</FONT>            } catch (SQLException e) {}<a name="line.217"></a>
<FONT color="green">218</FONT>            return new PStmtKey(normalizeSQL(sql), catalog, resultSetType, resultSetConcurrency);<a name="line.218"></a>
<FONT color="green">219</FONT>        }<a name="line.219"></a>
<FONT color="green">220</FONT>        <a name="line.220"></a>
<FONT color="green">221</FONT>        /**<a name="line.221"></a>
<FONT color="green">222</FONT>         * Create a PStmtKey for the given arguments.<a name="line.222"></a>
<FONT color="green">223</FONT>         * @param sql the sql string used to define the statement<a name="line.223"></a>
<FONT color="green">224</FONT>         * @param resultSetType result set type<a name="line.224"></a>
<FONT color="green">225</FONT>         * @param resultSetConcurrency result set concurrency<a name="line.225"></a>
<FONT color="green">226</FONT>         * @param stmtType statement type - either {@link #STATEMENT_CALLABLESTMT} or {@link #STATEMENT_PREPAREDSTMT}<a name="line.226"></a>
<FONT color="green">227</FONT>         */<a name="line.227"></a>
<FONT color="green">228</FONT>        protected Object createKey(String sql, int resultSetType, int resultSetConcurrency, byte stmtType) {<a name="line.228"></a>
<FONT color="green">229</FONT>            String catalog = null;<a name="line.229"></a>
<FONT color="green">230</FONT>            try {<a name="line.230"></a>
<FONT color="green">231</FONT>                catalog = getCatalog();<a name="line.231"></a>
<FONT color="green">232</FONT>            } catch (SQLException e) {}<a name="line.232"></a>
<FONT color="green">233</FONT>            return new PStmtKey(normalizeSQL(sql), catalog, resultSetType, resultSetConcurrency, stmtType);<a name="line.233"></a>
<FONT color="green">234</FONT>        }<a name="line.234"></a>
<FONT color="green">235</FONT>    <a name="line.235"></a>
<FONT color="green">236</FONT>        /**<a name="line.236"></a>
<FONT color="green">237</FONT>         * Create a PStmtKey for the given arguments.<a name="line.237"></a>
<FONT color="green">238</FONT>         * @param sql the sql string used to define the statement<a name="line.238"></a>
<FONT color="green">239</FONT>         */<a name="line.239"></a>
<FONT color="green">240</FONT>        protected Object createKey(String sql) {<a name="line.240"></a>
<FONT color="green">241</FONT>            String catalog = null;<a name="line.241"></a>
<FONT color="green">242</FONT>            try {<a name="line.242"></a>
<FONT color="green">243</FONT>                catalog = getCatalog();<a name="line.243"></a>
<FONT color="green">244</FONT>            } catch (SQLException e) {}<a name="line.244"></a>
<FONT color="green">245</FONT>            return new PStmtKey(normalizeSQL(sql), catalog);<a name="line.245"></a>
<FONT color="green">246</FONT>        }<a name="line.246"></a>
<FONT color="green">247</FONT>        <a name="line.247"></a>
<FONT color="green">248</FONT>        /**<a name="line.248"></a>
<FONT color="green">249</FONT>         * Create a PStmtKey for the given arguments.<a name="line.249"></a>
<FONT color="green">250</FONT>         * @param sql the sql string used to define the statement<a name="line.250"></a>
<FONT color="green">251</FONT>         * @param stmtType statement type - either {@link #STATEMENT_CALLABLESTMT} or {@link #STATEMENT_PREPAREDSTMT}<a name="line.251"></a>
<FONT color="green">252</FONT>         */<a name="line.252"></a>
<FONT color="green">253</FONT>        protected Object createKey(String sql, byte stmtType) {<a name="line.253"></a>
<FONT color="green">254</FONT>            String catalog = null;<a name="line.254"></a>
<FONT color="green">255</FONT>            try {<a name="line.255"></a>
<FONT color="green">256</FONT>                catalog = getCatalog();<a name="line.256"></a>
<FONT color="green">257</FONT>            } catch (SQLException e) {}<a name="line.257"></a>
<FONT color="green">258</FONT>            return new PStmtKey(normalizeSQL(sql), catalog, stmtType);<a name="line.258"></a>
<FONT color="green">259</FONT>        }<a name="line.259"></a>
<FONT color="green">260</FONT>    <a name="line.260"></a>
<FONT color="green">261</FONT>        /**<a name="line.261"></a>
<FONT color="green">262</FONT>         * Normalize the given SQL statement, producing a<a name="line.262"></a>
<FONT color="green">263</FONT>         * cannonical form that is semantically equivalent to the original.<a name="line.263"></a>
<FONT color="green">264</FONT>         */<a name="line.264"></a>
<FONT color="green">265</FONT>        protected String normalizeSQL(String sql) {<a name="line.265"></a>
<FONT color="green">266</FONT>            return sql.trim();<a name="line.266"></a>
<FONT color="green">267</FONT>        }<a name="line.267"></a>
<FONT color="green">268</FONT>    <a name="line.268"></a>
<FONT color="green">269</FONT>        /**<a name="line.269"></a>
<FONT color="green">270</FONT>         * {@link KeyedPoolableObjectFactory} method for creating<a name="line.270"></a>
<FONT color="green">271</FONT>         * {@link PoolablePreparedStatement}s or {@link PoolableCallableStatement}s.<a name="line.271"></a>
<FONT color="green">272</FONT>         * The &lt;code&gt;stmtType&lt;/code&gt; field in the key determines whether <a name="line.272"></a>
<FONT color="green">273</FONT>         * a PoolablePreparedStatement or PoolableCallableStatement is created.<a name="line.273"></a>
<FONT color="green">274</FONT>         * <a name="line.274"></a>
<FONT color="green">275</FONT>         * @param obj the key for the {@link PreparedStatement} to be created<a name="line.275"></a>
<FONT color="green">276</FONT>         * @see #createKey(String, int, int, byte)<a name="line.276"></a>
<FONT color="green">277</FONT>         */<a name="line.277"></a>
<FONT color="green">278</FONT>        public Object makeObject(Object obj) throws Exception {<a name="line.278"></a>
<FONT color="green">279</FONT>            if(null == obj || !(obj instanceof PStmtKey)) {<a name="line.279"></a>
<FONT color="green">280</FONT>                throw new IllegalArgumentException("Prepared statement key is null or invalid.");<a name="line.280"></a>
<FONT color="green">281</FONT>            } else {<a name="line.281"></a>
<FONT color="green">282</FONT>                PStmtKey key = (PStmtKey)obj;<a name="line.282"></a>
<FONT color="green">283</FONT>                if( null == key._resultSetType &amp;&amp; null == key._resultSetConcurrency ) {<a name="line.283"></a>
<FONT color="green">284</FONT>                    if (key._stmtType == STATEMENT_PREPAREDSTMT ) {<a name="line.284"></a>
<FONT color="green">285</FONT>                        return new PoolablePreparedStatement(getDelegate().prepareStatement( key._sql), key, _pstmtPool, this); <a name="line.285"></a>
<FONT color="green">286</FONT>                    } else {<a name="line.286"></a>
<FONT color="green">287</FONT>                        return new PoolableCallableStatement(getDelegate().prepareCall( key._sql), key, _pstmtPool, this);<a name="line.287"></a>
<FONT color="green">288</FONT>                    }<a name="line.288"></a>
<FONT color="green">289</FONT>                } else { // Both _resultSetType and _resultSetConcurrency are non-null here (both or neither are set by constructors)<a name="line.289"></a>
<FONT color="green">290</FONT>                    if(key._stmtType == STATEMENT_PREPAREDSTMT) {<a name="line.290"></a>
<FONT color="green">291</FONT>                        return new PoolablePreparedStatement(getDelegate().prepareStatement(<a name="line.291"></a>
<FONT color="green">292</FONT>                            key._sql, key._resultSetType.intValue(),key._resultSetConcurrency.intValue()), key, _pstmtPool, this);<a name="line.292"></a>
<FONT color="green">293</FONT>                    } else {<a name="line.293"></a>
<FONT color="green">294</FONT>                        return new PoolableCallableStatement( getDelegate().prepareCall(<a name="line.294"></a>
<FONT color="green">295</FONT>                            key._sql,key._resultSetType.intValue(), key._resultSetConcurrency.intValue()), key, _pstmtPool, this);<a name="line.295"></a>
<FONT color="green">296</FONT>                    }<a name="line.296"></a>
<FONT color="green">297</FONT>                }<a name="line.297"></a>
<FONT color="green">298</FONT>            }<a name="line.298"></a>
<FONT color="green">299</FONT>        }<a name="line.299"></a>
<FONT color="green">300</FONT>    <a name="line.300"></a>
<FONT color="green">301</FONT>        /**<a name="line.301"></a>
<FONT color="green">302</FONT>         * {@link KeyedPoolableObjectFactory} method for destroying<a name="line.302"></a>
<FONT color="green">303</FONT>         * PoolablePreparedStatements and PoolableCallableStatements.<a name="line.303"></a>
<FONT color="green">304</FONT>         * Closes the underlying statement.<a name="line.304"></a>
<FONT color="green">305</FONT>         * <a name="line.305"></a>
<FONT color="green">306</FONT>         * @param key ignored<a name="line.306"></a>
<FONT color="green">307</FONT>         * @param obj the pooled statement to be destroyed.<a name="line.307"></a>
<FONT color="green">308</FONT>         */<a name="line.308"></a>
<FONT color="green">309</FONT>        public void destroyObject(Object key, Object obj) throws Exception {<a name="line.309"></a>
<FONT color="green">310</FONT>            if(obj instanceof DelegatingPreparedStatement) {<a name="line.310"></a>
<FONT color="green">311</FONT>                ((DelegatingPreparedStatement)obj).getInnermostDelegate().close();<a name="line.311"></a>
<FONT color="green">312</FONT>            } else {<a name="line.312"></a>
<FONT color="green">313</FONT>                ((PreparedStatement)obj).close();<a name="line.313"></a>
<FONT color="green">314</FONT>            }<a name="line.314"></a>
<FONT color="green">315</FONT>        }<a name="line.315"></a>
<FONT color="green">316</FONT>    <a name="line.316"></a>
<FONT color="green">317</FONT>        /**<a name="line.317"></a>
<FONT color="green">318</FONT>         * {@link KeyedPoolableObjectFactory} method for validating<a name="line.318"></a>
<FONT color="green">319</FONT>         * pooled statements. Currently always returns true.<a name="line.319"></a>
<FONT color="green">320</FONT>         * <a name="line.320"></a>
<FONT color="green">321</FONT>         * @param key ignored<a name="line.321"></a>
<FONT color="green">322</FONT>         * @param obj ignored<a name="line.322"></a>
<FONT color="green">323</FONT>         * @return &lt;tt&gt;true&lt;/tt&gt;<a name="line.323"></a>
<FONT color="green">324</FONT>         */<a name="line.324"></a>
<FONT color="green">325</FONT>        public boolean validateObject(Object key, Object obj) {<a name="line.325"></a>
<FONT color="green">326</FONT>            return true;<a name="line.326"></a>
<FONT color="green">327</FONT>        }<a name="line.327"></a>
<FONT color="green">328</FONT>    <a name="line.328"></a>
<FONT color="green">329</FONT>        /**<a name="line.329"></a>
<FONT color="green">330</FONT>         * {@link KeyedPoolableObjectFactory} method for activating<a name="line.330"></a>
<FONT color="green">331</FONT>         * pooled statements.<a name="line.331"></a>
<FONT color="green">332</FONT>         * <a name="line.332"></a>
<FONT color="green">333</FONT>         * @param key ignored<a name="line.333"></a>
<FONT color="green">334</FONT>         * @param obj pooled statement to be activated<a name="line.334"></a>
<FONT color="green">335</FONT>         */<a name="line.335"></a>
<FONT color="green">336</FONT>        public void activateObject(Object key, Object obj) throws Exception {<a name="line.336"></a>
<FONT color="green">337</FONT>            ((DelegatingPreparedStatement)obj).activate();<a name="line.337"></a>
<FONT color="green">338</FONT>        }<a name="line.338"></a>
<FONT color="green">339</FONT>    <a name="line.339"></a>
<FONT color="green">340</FONT>        /**<a name="line.340"></a>
<FONT color="green">341</FONT>         * {@link KeyedPoolableObjectFactory} method for passivating<a name="line.341"></a>
<FONT color="green">342</FONT>         * {@link PreparedStatement}s or {@link CallableStatement}s.<a name="line.342"></a>
<FONT color="green">343</FONT>         * Invokes {@link PreparedStatement#clearParameters}.<a name="line.343"></a>
<FONT color="green">344</FONT>         * <a name="line.344"></a>
<FONT color="green">345</FONT>         * @param key ignored<a name="line.345"></a>
<FONT color="green">346</FONT>         * @param obj a {@link PreparedStatement}<a name="line.346"></a>
<FONT color="green">347</FONT>         */<a name="line.347"></a>
<FONT color="green">348</FONT>        public void passivateObject(Object key, Object obj) throws Exception {<a name="line.348"></a>
<FONT color="green">349</FONT>            ((PreparedStatement)obj).clearParameters();<a name="line.349"></a>
<FONT color="green">350</FONT>            ((DelegatingPreparedStatement)obj).passivate();<a name="line.350"></a>
<FONT color="green">351</FONT>        }<a name="line.351"></a>
<FONT color="green">352</FONT>    <a name="line.352"></a>
<FONT color="green">353</FONT>        public String toString() {<a name="line.353"></a>
<FONT color="green">354</FONT>            if (_pstmtPool != null ) {<a name="line.354"></a>
<FONT color="green">355</FONT>                return "PoolingConnection: " + _pstmtPool.toString();<a name="line.355"></a>
<FONT color="green">356</FONT>            } else {<a name="line.356"></a>
<FONT color="green">357</FONT>                return "PoolingConnection: null";<a name="line.357"></a>
<FONT color="green">358</FONT>            }<a name="line.358"></a>
<FONT color="green">359</FONT>        }<a name="line.359"></a>
<FONT color="green">360</FONT>    <a name="line.360"></a>
<FONT color="green">361</FONT>        /**<a name="line.361"></a>
<FONT color="green">362</FONT>         * A key uniquely identifiying {@link PreparedStatement}s.<a name="line.362"></a>
<FONT color="green">363</FONT>         */<a name="line.363"></a>
<FONT color="green">364</FONT>        static class PStmtKey {<a name="line.364"></a>
<FONT color="green">365</FONT>            <a name="line.365"></a>
<FONT color="green">366</FONT>            /** SQL defining Prepared or Callable Statement */<a name="line.366"></a>
<FONT color="green">367</FONT>            protected String _sql = null;<a name="line.367"></a>
<FONT color="green">368</FONT>            <a name="line.368"></a>
<FONT color="green">369</FONT>            /** Result set type */<a name="line.369"></a>
<FONT color="green">370</FONT>            protected Integer _resultSetType = null;<a name="line.370"></a>
<FONT color="green">371</FONT>            <a name="line.371"></a>
<FONT color="green">372</FONT>            /** Result set concurrency */<a name="line.372"></a>
<FONT color="green">373</FONT>            protected Integer _resultSetConcurrency = null;<a name="line.373"></a>
<FONT color="green">374</FONT>            <a name="line.374"></a>
<FONT color="green">375</FONT>            /** Database catalog */<a name="line.375"></a>
<FONT color="green">376</FONT>            protected String _catalog = null;<a name="line.376"></a>
<FONT color="green">377</FONT>            <a name="line.377"></a>
<FONT color="green">378</FONT>            /** <a name="line.378"></a>
<FONT color="green">379</FONT>             *  Statement type. Either STATEMENT_PREPAREDSTMT (PreparedStatement)<a name="line.379"></a>
<FONT color="green">380</FONT>             *  or STATEMENT_CALLABLESTMT (CallableStatement) <a name="line.380"></a>
<FONT color="green">381</FONT>             */<a name="line.381"></a>
<FONT color="green">382</FONT>            protected byte _stmtType = STATEMENT_PREPAREDSTMT;<a name="line.382"></a>
<FONT color="green">383</FONT>            <a name="line.383"></a>
<FONT color="green">384</FONT>            PStmtKey(String sql) {<a name="line.384"></a>
<FONT color="green">385</FONT>                _sql = sql;<a name="line.385"></a>
<FONT color="green">386</FONT>            }<a name="line.386"></a>
<FONT color="green">387</FONT>    <a name="line.387"></a>
<FONT color="green">388</FONT>            PStmtKey(String sql, String catalog) {<a name="line.388"></a>
<FONT color="green">389</FONT>                _sql = sql;<a name="line.389"></a>
<FONT color="green">390</FONT>                _catalog = catalog;<a name="line.390"></a>
<FONT color="green">391</FONT>            }<a name="line.391"></a>
<FONT color="green">392</FONT>            <a name="line.392"></a>
<FONT color="green">393</FONT>            PStmtKey(String sql, String catalog, byte stmtType) {<a name="line.393"></a>
<FONT color="green">394</FONT>                _sql = sql;<a name="line.394"></a>
<FONT color="green">395</FONT>                _catalog = catalog;<a name="line.395"></a>
<FONT color="green">396</FONT>                _stmtType = stmtType;<a name="line.396"></a>
<FONT color="green">397</FONT>            }<a name="line.397"></a>
<FONT color="green">398</FONT>    <a name="line.398"></a>
<FONT color="green">399</FONT>            PStmtKey(String sql, int resultSetType, int resultSetConcurrency) {<a name="line.399"></a>
<FONT color="green">400</FONT>                _sql = sql;<a name="line.400"></a>
<FONT color="green">401</FONT>                _resultSetType = new Integer(resultSetType);<a name="line.401"></a>
<FONT color="green">402</FONT>                _resultSetConcurrency = new Integer(resultSetConcurrency);<a name="line.402"></a>
<FONT color="green">403</FONT>            }<a name="line.403"></a>
<FONT color="green">404</FONT>    <a name="line.404"></a>
<FONT color="green">405</FONT>            PStmtKey(String sql, String catalog, int resultSetType, int resultSetConcurrency) {<a name="line.405"></a>
<FONT color="green">406</FONT>                _sql = sql;<a name="line.406"></a>
<FONT color="green">407</FONT>                _catalog = catalog;<a name="line.407"></a>
<FONT color="green">408</FONT>                _resultSetType = new Integer(resultSetType);<a name="line.408"></a>
<FONT color="green">409</FONT>                _resultSetConcurrency = new Integer(resultSetConcurrency);<a name="line.409"></a>
<FONT color="green">410</FONT>            }<a name="line.410"></a>
<FONT color="green">411</FONT>            <a name="line.411"></a>
<FONT color="green">412</FONT>            PStmtKey(String sql, String catalog, int resultSetType, int resultSetConcurrency, byte stmtType) {<a name="line.412"></a>
<FONT color="green">413</FONT>                _sql = sql;<a name="line.413"></a>
<FONT color="green">414</FONT>                _catalog = catalog;<a name="line.414"></a>
<FONT color="green">415</FONT>                _resultSetType = new Integer(resultSetType);<a name="line.415"></a>
<FONT color="green">416</FONT>                _resultSetConcurrency = new Integer(resultSetConcurrency);<a name="line.416"></a>
<FONT color="green">417</FONT>                _stmtType = stmtType;<a name="line.417"></a>
<FONT color="green">418</FONT>            }<a name="line.418"></a>
<FONT color="green">419</FONT>    <a name="line.419"></a>
<FONT color="green">420</FONT>            public boolean equals(Object that) {<a name="line.420"></a>
<FONT color="green">421</FONT>                try {<a name="line.421"></a>
<FONT color="green">422</FONT>                    PStmtKey key = (PStmtKey)that;<a name="line.422"></a>
<FONT color="green">423</FONT>                    return( ((null == _sql &amp;&amp; null == key._sql) || _sql.equals(key._sql)) &amp;&amp;  <a name="line.423"></a>
<FONT color="green">424</FONT>                            ((null == _catalog &amp;&amp; null == key._catalog) || _catalog.equals(key._catalog)) &amp;&amp;<a name="line.424"></a>
<FONT color="green">425</FONT>                            ((null == _resultSetType &amp;&amp; null == key._resultSetType) || _resultSetType.equals(key._resultSetType)) &amp;&amp;<a name="line.425"></a>
<FONT color="green">426</FONT>                            ((null == _resultSetConcurrency &amp;&amp; null == key._resultSetConcurrency) || _resultSetConcurrency.equals(key._resultSetConcurrency)) &amp;&amp;<a name="line.426"></a>
<FONT color="green">427</FONT>                            (_stmtType == key._stmtType)<a name="line.427"></a>
<FONT color="green">428</FONT>                          );<a name="line.428"></a>
<FONT color="green">429</FONT>                } catch(ClassCastException e) {<a name="line.429"></a>
<FONT color="green">430</FONT>                    return false;<a name="line.430"></a>
<FONT color="green">431</FONT>                } catch(NullPointerException e) {<a name="line.431"></a>
<FONT color="green">432</FONT>                    return false;<a name="line.432"></a>
<FONT color="green">433</FONT>                }<a name="line.433"></a>
<FONT color="green">434</FONT>            }<a name="line.434"></a>
<FONT color="green">435</FONT>    <a name="line.435"></a>
<FONT color="green">436</FONT>            public int hashCode() {<a name="line.436"></a>
<FONT color="green">437</FONT>                if (_catalog==null)<a name="line.437"></a>
<FONT color="green">438</FONT>                    return(null == _sql ? 0 : _sql.hashCode());<a name="line.438"></a>
<FONT color="green">439</FONT>                else<a name="line.439"></a>
<FONT color="green">440</FONT>                    return(null == _sql ? _catalog.hashCode() : (_catalog + _sql).hashCode());<a name="line.440"></a>
<FONT color="green">441</FONT>            }<a name="line.441"></a>
<FONT color="green">442</FONT>    <a name="line.442"></a>
<FONT color="green">443</FONT>            public String toString() {<a name="line.443"></a>
<FONT color="green">444</FONT>                StringBuffer buf = new StringBuffer();<a name="line.444"></a>
<FONT color="green">445</FONT>                buf.append("PStmtKey: sql=");<a name="line.445"></a>
<FONT color="green">446</FONT>                buf.append(_sql);<a name="line.446"></a>
<FONT color="green">447</FONT>                buf.append(", catalog=");<a name="line.447"></a>
<FONT color="green">448</FONT>                buf.append(_catalog);<a name="line.448"></a>
<FONT color="green">449</FONT>                buf.append(", resultSetType=");<a name="line.449"></a>
<FONT color="green">450</FONT>                buf.append(_resultSetType);<a name="line.450"></a>
<FONT color="green">451</FONT>                buf.append(", resultSetConcurrency=");<a name="line.451"></a>
<FONT color="green">452</FONT>                buf.append(_resultSetConcurrency);<a name="line.452"></a>
<FONT color="green">453</FONT>                buf.append(", statmentType=");<a name="line.453"></a>
<FONT color="green">454</FONT>                buf.append(_stmtType);<a name="line.454"></a>
<FONT color="green">455</FONT>                return buf.toString();<a name="line.455"></a>
<FONT color="green">456</FONT>            }<a name="line.456"></a>
<FONT color="green">457</FONT>        }<a name="line.457"></a>
<FONT color="green">458</FONT>    }<a name="line.458"></a>




























































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